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arXiv 2301.03296quant-ph
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量子比特空间的精确认证

Precise certification of a qubit space

Tomasz Białecki, Tomasz Rybotycki, Josep Batle, Jakub Tworzydło, Adam Bednorz

AI总结:

本文利用IBM量子计算机和行列式维度见证,实现了对量子比特空间维度的精确认证,精度优于$10^{-3}$,并发现两台设备异常未通过测试。

摘要:

我们利用公开的IBM量子计算机,通过行列式维度见证,演示了量子比特维度精确测试的实现。与更高维度中见证的最大可能值相比,精度低于$10^{-3}$。该测试涉及制备和测量操作(门)的最小独立集合,既应用于特定配置,也应用于参数化配置。该测试对非理想性(如非相干泄漏和错误的门执行)具有鲁棒性。两台IBM设备以超过$5$个标准差的程度未通过测试,这一结果无法用简单原因解释。

英文摘要:

We demonstrate an implementation of the precise test of dimension on the qubit, using the public IBM quantum computer, using the determinant dimension witness. The accuracy is below $10^{-3}$ comparing to maximal possible value of the witness in higher dimension. The test involving minimal independent sets of preparation and measurement operations (gates) is applied both for specific configurations and parametric ones. The test is be robust against nonidealities such as incoherent leakage and erroneous gate execution. Two of the IBM devices failed the test by more than $5$ standard deviations, which has no simple explanation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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